Mitsubishi Electric Melservo-J3 Series MR-J3-B, Instruction Manual

Page: 674 / 802

16 - 119
16. INDEXER POSITIONING OPERATION
Display Name Definition Cause Action
A90 Home position
return incomplete
In in
cr
em
ent
al
sys
te
m
Positioning
operation was
performed without
home position
return.
1. Positioning operation was performed
without home position return.
Perform home position return.
Home position
return ended
abnormally.
2. Home position return speed could not be
decreased to creep speed.
Check home position return
speed/creep speed/moving
distance after proximity dog.
3. Limit switch was actuated during home
position return starting at other than
position beyond dog.
Home position
return is
incomplete.
4. Indexer JOG operation (in automatic/
manual operation) was executed without
home position return.
Perform home position return.
This warning is automatically
cleared after home position return
is executed.
5. The operation method (parameter
No.PA01), electronic gear (parameter
No.PA06 and PA07), station No. direction
selection (parameter No.PA14), or
number of stations/rotation (parameter
No.PC46) was changed.
In abs
ol
ut
e po
si
tion det
ec
tion
sy
st
em
Positioning
operation was
performed without
home position
setting. 1. Positioning operation was performed
without home position setting.
Perform home position setting.
Home position
setting ended
abnormally. 2. Home position return speed could not be
decreased to creep speed.
3. Limit switch was actuated during home
position setting starting at other than
position beyond dog.
Check home position return
speed/creep speed/moving
distance after proximity dog.
Operation was
performed without
making home
position setting
while an absolute
position erase
(A25) is being
occurred. 4. Voltage drop in encoder
(Battery is disconnected.)
Connect the battery and make
home position setting again.
5. Battery voltage low
Change the battery.
Always make home position
setting again.
6. Battery cable or battery is faulty.
Home position
setting is
incomplete. 7. Indexer JOG operation (in automatic/
manual operation) was executed without
home position setting.
Perform home position setting.
This warning is automatically
cleared after home position return
is executed.
8. The operation method (parameter
No.PA01), electronic gear (parameter
No.PA06 and PA07), station No. direction
selection (parameter No.PA14), or
number of stations/rotation (parameter
No.PC46) was changed.